JP2011237512A5

JP2011237512A5 -

Info

Publication number: JP2011237512A5
Application number: JP2010107088A
Authority: JP
Filing date: 2010-05-07
Publication date: 2013-06-27
Anticipated expiration: 2030-05-07

Claims

A first polarizing plate and a second polarizing plate;
A first substrate and a second substrate disposed between the first polarizing plate and the second polarizing plate;
A liquid crystal layer disposed between the first substrate and the second substrate;
A first optically anisotropic layer between the first polarizing plate and the first substrate;
Liquid crystal molecules in the liquid crystal layer are horizontally aligned,
The liquid crystal molecules are rotated by an electric field in a direction parallel to the in-plane direction of the first substrate,
The maximum refractive index in the plane of the first optical anisotropic layer is n ₁ x, the refractive index in the direction orthogonal to the direction of the maximum refractive index n ₁ x is n ₁ y, and the first optical anisotropic layer. when the refractive index in the thickness direction of the _{n 1} z, a _{_{n 1 x ≠ n 1 y ≠}} n 1 z,
When the polar angle with respect to plane vertical direction of the first optically anisotropic layer was changed to phi _1,
The first optical anisotropic layer compensates for the polarization state of any light having a wavelength of 530 nm or more and 560 nm or less incident on the first optical anisotropic layer,
The first optically anisotropic layer has a dichroic maximum value in a range of 430 nm to 470 nm and a dichroic maximum value in a range of 600 nm to 650 nm when φ ₁ ≠ 0. LCD panel.

In claim 1,
Δn is (n ₁ x−n ₁ y), the thickness of the first optical anisotropic layer is d, and the Nz coefficient is {(n ₁ x−n ₁ z) / (n ₁ x−n ₁ y)}. And when
The value of Δn · d is 100 nm to 200 nm,
The value of Nz coefficient is 0.2 or more and 0.5 or less, The liquid crystal panel characterized by the above-mentioned.

In claim 2,
The value of Δn · d is 120 nm or more and 150 nm or less,
A liquid crystal panel, wherein the value of the Nz coefficient is 0.3 or more and 0.4 or less.

The liquid crystal panel according to any one of claims 1 to 3 ,
The liquid crystal panel, wherein the first optically anisotropic layer contains a hydrophilic polymer.

In the liquid crystal panel according to any one of claims 1 to 4 ,
Said 1st optically anisotropic layer is affixed on the support film contained in said 1st polarizing plate, The liquid crystal panel characterized by the above-mentioned.

The liquid crystal panel according to any one of claims 1 to 5 ,
The first optically anisotropic layer includes a first dye and a second dye,
The liquid crystal panel, wherein the first dye and the second dye are aligned in an in-plane vertical direction of the first optical anisotropic layer.

The liquid crystal panel according to any one of claims 1 to 6 ,
The first optically anisotropic layer has a dichroic maximum value in a range of 430 nm to 470 nm and a dichroic maximum value in a range of 600 nm to 650 nm at 43 ° <φ <47 °. A liquid crystal panel characterized by that.

The liquid crystal panel according to any one of claims 1 to 7 ,
The liquid crystal panel, wherein the first optical anisotropic layer is formed by coating.

The liquid crystal panel according to any one of claims 1 to 8 ,
A second optically anisotropic layer is formed between the second polarizing plate and the second substrate;
The maximum refractive index in the plane of the second optical anisotropic layer is n ₂ x, the refractive index in the direction perpendicular to the direction of the maximum refractive index n ₂ x is n ₂ y, and the second optical anisotropic layer When the refractive index in the thickness direction is n ₂ z, n ₂ x ≠ n ₂ y ≠ n ₂ z,
When the polar angle with respect to plane vertical direction of the second optically anisotropic layer was phi _2,
The second optical anisotropic layer compensates for the polarization state of light having a wavelength of 550 nm incident on the second optical anisotropic layer,
The second optically anisotropic layer has a dichroic maximum value in a range of 430 nm to 470 nm and a dichroic maximum value in a range of 600 nm to 650 nm when φ ₂ ≠ 0. LCD panel.

The liquid crystal panel according to any one of claims 1 to 9 ,
The optically anisotropic layer includes a first dye and a second dye,
The liquid crystal panel according to claim 1, wherein the total concentration of the first dye and the second dye in the optically anisotropic layer is 0.1 wt% or more and 5 wt% or less.

The liquid crystal panel according to any one of claims 1 to 10 ,
The liquid crystal panel according to claim 1, wherein a pretilt angle of the liquid crystal molecules is 1 degree or less.

A liquid crystal panel according to any one of claims 1 to 11 ,
And a light source unit that emits light toward the liquid crystal panel.

A first polarizing plate and a second polarizing plate;
A first substrate and a second substrate disposed between the first polarizing plate and the second polarizing plate;
A liquid crystal layer disposed between the first substrate and the second substrate;
A retardation film disposed between the first substrate and the liquid crystal layer or between the first substrate and the first polarizing plate;
An optically anisotropic layer between the first polarizing plate and the first substrate;
The retardation film has optically negative uniaxiality,
The optical axis of the retardation film is perpendicular to the in-plane direction of the retardation film,
The birefringence retardation in the thickness direction of the retardation film is 120 nm or more and 250 nm or less,
Liquid crystal molecules in the liquid crystal layer are rotated by an electric field in a vertical direction applied between the first substrate and the second substrate,
The maximum refractive index in the plane of the optical anisotropic layer is nx, the refractive index in the direction orthogonal to the direction having the maximum refractive index in the plane of the optical anisotropic layer is ny, and the thickness direction of the optical anisotropic layer is When the refractive index is nz, nx ≠ ny ≠ nz,
When Δn is (nx−ny), the thickness of the first optical anisotropic layer is d, and the Nz coefficient is {(nx−nz) / (nx−ny)},
The value of Δn · d is 100 nm to 200 nm,
The value of the Nz coefficient is 0.2 or more and 0.5 or less,
The optically anisotropic layer includes a first dye and a second dye,
When the polar angle with respect to the vertical direction of the optical anisotropic layer is φ,
The first dye has a dichroic maximum value in a range of 430 nm or more and 470 nm or less when φ ≠ 0,
The liquid crystal panel, wherein the second dye has a dichroic maximum in a range of 600 nm to 650 nm when φ ≠ 0.

In claim 13,
The liquid crystal panel, wherein the optically anisotropic layer is disposed between the retardation film and the first polarizing plate.

A liquid crystal panel according to claim 13 or 14 ,
And a light source unit that emits light toward the liquid crystal panel.